Add support for isDeprecated / deprecatedReason

[ruudk]

Seems like it's not allowed to define it in the field config.

[mcg-web]

Thanks for bringing this up!

[mcg-web]

Webonyx/GraphQL-PHP is not supporting the isDeprecated config entry right now but deprecationReason work properly. I add tips on documentation to deprecate object fields and enum value using deprecationReason...

[mcg-web]

I'll keep this open while waiting for isDeprecated in webonyx/graphql-php.

[mcg-web]

Closing this, feel free to re open if needed 👍

[vladar]

FYI, isDeprecated is inferred from deprecationReason and is already exposed in Introspection results in graphql-php.

But it will not be added as separate config entry. It is done the same way as in reference implementation on purpose: to enforce best practices of documenting why some field was actually deprecated.

So in terms of type definitions deprecationReason is all you need.